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LA 1/31/18 Intro to JavaScript: Fundamentals
- 1. Intro to JavaScript:Fundamentals January 2018 http://bit.ly/tf-intro-js Wi-Fi: Cross Camp.us Events 1
- 2. Instructor Cyrus Kia Solutions Engineer& Web Developer TA's Justin Ezor Thinkful LA Community Manager & Web Developer 2
- 3. About you What's yourname? What brought you here today? What is your programming experience? 3
- 4. About Thinkful We traindevelopers and data scientists through 1x1 mentorship and project-based learning. Guaranteed. 4
- 5. Agenda Learn key Javascriptconcepts Go over assignments Complete assignments with our support! Go over answer key 5
- 6. How the webworks Type a URL from a client (e.g. google.com) Browser sends an HTTP request asking for specific files Browser receives those files and renders them as a website 6
- 7. Client/Servers Client (sends requests) FrontendDeveloper Manages what user sees Server (sends response) Backend Developer Manages what app does 7
- 8. Example: facebook.com Client Server Openbrowser and navigate to facebook.com HTML, CSS, & JavaScript render newsfeed Request Response Algorithm determines content of feed. Sends back HTML, CSS, JavaScript files Application Logic Initial request Following response 8
- 9. Example: facebook.com Client Server Openbrowser and navigate to facebook.com HTML, CSS, & JavaScript render newsfeed Request Response Algorithm determines content of feed. Sends back HTML, CSS, JavaScript files Application Logic Initial request Following response We'll be writing JavaScript, the code that the browser uses to run the app 9
- 10. Defining a variablewith JavaScript var numberOfSheep = 20 Initialize variable Name of variable Value of variable 10
- 11. Repl.it setup &first steps! bit.ly/tf-intro-js-challenges 11
- 12.
- 13. Declaring a functionwith JavaScript function greet() { return "Hello world!"; } Initialize function Name of function What the function does 13
- 14.
- 15. If/Else Statements go togas stationkeep driving if false if true need gas? family roadtrip 15
- 16. If/Else Statements function familyRoadtrip(){ if (needGas == true) { getGas(); } else { keepDriving(); } } 16
- 17. Comparing Values == (equalto) 5 == 5 --> true 5 == 6 --> false != (not equal to) 5 != 5 --> false 5 != 6 --> true 17
- 18. If/Else Statements andComparing Values JSBin.com 18
- 19. Parameters within functions functionadder(a, b) { return a + b; } adder(1,2); Parameters in declaration Parameters used within the function 19
- 20. Examples of parameterswithin functions JSBin.com 20
- 21. Real developers useGoogle... a lot bit.ly/intro-js-la 21
- 22. Ways to keeplearning 22
- 23. Thinkful's free resource HTML,CSS and JavaScript Unlimited group mentor sessions Personal Program Manager Slack Channel bit.ly/web-dev-free-la Web Development Fundamentals Course 23